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/*
* Copyright (c) 1989 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 1999, Marek Michałkiewicz
* Copyright (c) 2003 - 2005, Tomasz Kłoczko
* Copyright (c) 2007 - 2008, Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#ifdef RLOGIN
#ident "$Id$"
#include "prototypes.h"
#include "defines.h"
#include <stdio.h>
#include <pwd.h>
#include <netdb.h>
static struct {
int spd_name;
int spd_baud;
} speed_table[] =
{
#ifdef B50
{
B50, 50},
#endif
#ifdef B75
{
B75, 75},
#endif
#ifdef B110
{
B110, 110},
#endif
#ifdef B134
{
B134, 134},
#endif
#ifdef B150
{
B150, 150},
#endif
#ifdef B200
{
B200, 200},
#endif
#ifdef B300
{
B300, 300},
#endif
#ifdef B600
{
B600, 600},
#endif
#ifdef B1200
{
B1200, 1200},
#endif
#ifdef B1800
{
B1800, 1800},
#endif
#ifdef B2400
{
B2400, 2400},
#endif
#ifdef B4800
{
B4800, 4800},
#endif
#ifdef B9600
{
B9600, 9600},
#endif
#ifdef B19200
{
B19200, 19200},
#endif
#ifdef B38400
{
B38400, 38400},
#endif
{
-1, -1}
};
static void get_remote_string (char *buf, size_t size)
{
for (;;) {
if (read (0, buf, 1) != 1) {
exit (EXIT_FAILURE);
}
if ('\0' == *buf) {
return;
}
--size;
if (size > 0) {
++buf;
}
}
/*NOTREACHED*/}
int
do_rlogin (const char *remote_host, char *name, size_t namelen, char *term,
size_t termlen)
{
struct passwd *pwd;
char remote_name[32];
char *cp;
unsigned long remote_speed = 9600;
int speed_name = B9600;
int i;
TERMIO termio;
get_remote_string (remote_name, sizeof remote_name);
get_remote_string (name, namelen);
get_remote_string (term, termlen);
cp = strchr (term, '/');
if (NULL != cp) {
*cp = '\0';
cp++;
if (getulong (cp, &remote_speed) == 0) {
remote_speed = 9600;
}
}
for (i = 0;
( (speed_table[i].spd_baud != remote_speed)
&& (speed_table[i].spd_name != -1));
i++);
if (-1 != speed_table[i].spd_name) {
speed_name = speed_table[i].spd_name;
}
/*
* Put the terminal in cooked mode with echo turned on.
*/
GTTY (0, &termio);
termio.c_iflag |= ICRNL | IXON;
termio.c_oflag |= OPOST | ONLCR;
termio.c_lflag |= ICANON | ECHO | ECHOE;
#ifdef CBAUD
termio.c_cflag = (termio.c_cflag & ~CBAUD) | speed_name;
#else
termio.c_cflag = (termio.c_cflag) | speed_name;
#endif
STTY (0, &termio);
pwd = getpwnam (name); /* local, no need for xgetpwnam */
if (NULL == pwd) {
return 0;
}
/*
* ruserok() returns 0 for success on modern systems, and 1 on
* older ones. If you are having trouble with people logging
* in without giving a required password, THIS is the culprit -
* go fix the #define in config.h.
*/
#ifndef RUSEROK
return 0;
#else
return ruserok (remote_host, pwd->pw_uid == 0,
remote_name, name) == RUSEROK;
#endif
}
#endif /* RLOGIN */
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